Mercury Passes in Front of the Sun, as Seen From Mars
Pasadena CA (JPL) Jun 11, 2014 - NASA's Curiosity Mars rover has imaged the planet Mercury passing in front of the sun, visible as a faint darkening that moves across the face of the sun. This is the first transit of the sun by a planet observed from any planet other than Earth, and also the first imaging of Mercury from Mars. Mercury fills only about one-sixth of one pixel as seen from such great distance, so the darkeni ... more

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